National multicentered retrospective review of clinical and intraoperative factors associated with the development of cerebellar mutism after pediatric posterior fossa tumor resection.

Background: Cerebellar mutism (CM) is characterized by a significant loss of speech in children following posterior fossa (PF) surgery. The biological origin of CM remains unclear and is the subject of ongoing debate. Significant recovery from CM is less likely than previously described despite rigorous multidisciplinary neuro-rehabilitational efforts.

Undifferentiated presentation of unilateral agenesis of a cervical pedicle and a contiguous vertebral hemangioma: illustrative case.

Background: Unilateral agenesis of a cervical pedicle is a known rare entity that has been well described over the past 70 years. It is usually an incidental or minimally symptomatic presentation with no significant clinical repercussion. No previous report has described concurrent non-osseous developmental abnormalities alongside this unique pathology.